Ball thrower



FIG. 1 is a first isometric view of a ball thrower showing my new design;

FIG. 2 is a second isometric view of the ball thrower shown in FIG. 1,

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof, the right side view being a mirror image of the left side view;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a third isometric view thereof showing the shaft thereof telescopically collapsed. 

The ornamental design for a ball thrower, as shown and described. 